Home / 3,698.55-5,103.96-2,020.03

Finding the Fourth Proportional to 3,698.55, 5,103.96 and 2,020.03

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Solution

The fourth proportional to 3,698.55, 5,103.96 and 2,020.03 is: 2,787.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,698.55 : 5,103.96 = 2,020.03 : x
  2. Step 2: Convert to fraction form
    3,698.55/5,103.96 = 2,020.03/x
  3. Step 3: Cross multiply
    3,698.55x = 5,103.96 × 2,020.03
  4. Step 4: Simplify right side
    3,698.55x = 10,310,143.35
  5. Step 5: Solve for x
    x = 10,310,143.35/3,698.55
  6. Step 6: Final answer
    x = 2,787.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.